diff --git a/dist/base.js b/dist/base.js
index db5409a85..2178a6e28 100644
--- a/dist/base.js
+++ b/dist/base.js
@@ -15285,7 +15285,7 @@ BI.FloatBox = BI.inherit(BI.Widget, {
                                 el: {
                                     type: "bi.icon_button",
                                     cls: "bi-message-close close-font",
-                                    height: 50,
+                                    height: 36,
                                     handler: function () {
                                         self.currentSectionProvider.close();
                                     }
@@ -15294,7 +15294,7 @@ BI.FloatBox = BI.inherit(BI.Widget, {
                             }
                         }
                     },
-                    height: 50
+                    height: 36
                 },
                 center: {
                     el: {
diff --git a/dist/bundle.js b/dist/bundle.js
index 05a2c91e8..95a95f761 100644
--- a/dist/bundle.js
+++ b/dist/bundle.js
@@ -41337,7 +41337,7 @@ BI.FloatBox = BI.inherit(BI.Widget, {
                                 el: {
                                     type: "bi.icon_button",
                                     cls: "bi-message-close close-font",
-                                    height: 50,
+                                    height: 36,
                                     handler: function () {
                                         self.currentSectionProvider.close();
                                     }
@@ -41346,7 +41346,7 @@ BI.FloatBox = BI.inherit(BI.Widget, {
                             }
                         }
                     },
-                    height: 50
+                    height: 36
                 },
                 center: {
                     el: {
diff --git a/dist/fineui.js b/dist/fineui.js
index 2a0bb9f62..752314313 100644
--- a/dist/fineui.js
+++ b/dist/fineui.js
@@ -43101,7 +43101,7 @@ BI.FloatBox = BI.inherit(BI.Widget, {
                                 el: {
                                     type: "bi.icon_button",
                                     cls: "bi-message-close close-font",
-                                    height: 50,
+                                    height: 36,
                                     handler: function () {
                                         self.currentSectionProvider.close();
                                     }
@@ -43110,7 +43110,7 @@ BI.FloatBox = BI.inherit(BI.Widget, {
                             }
                         }
                     },
-                    height: 50
+                    height: 36
                 },
                 center: {
                     el: {
diff --git a/src/base/layer/layer.floatbox.js b/src/base/layer/layer.floatbox.js
index dde869b3e..82d42d8fd 100644
--- a/src/base/layer/layer.floatbox.js
+++ b/src/base/layer/layer.floatbox.js
@@ -65,7 +65,7 @@ BI.FloatBox = BI.inherit(BI.Widget, {
                                 el: {
                                     type: "bi.icon_button",
                                     cls: "bi-message-close close-font",
-                                    height: 50,
+                                    height: 36,
                                     handler: function () {
                                         self.currentSectionProvider.close();
                                     }
@@ -74,7 +74,7 @@ BI.FloatBox = BI.inherit(BI.Widget, {
                             }
                         }
                     },
-                    height: 50
+                    height: 36
                 },
                 center: {
                     el: {